Example of syntax

nav_bar.html

{= render_generic_tab_bar(tab_bar_class, options)
  <div class="{{ tab_bar_class }} clearfix">
    {% _.each(options.tabs, function(tab) {
      if (tab.visible === undefined || tab.visible ) { %}
        <span class="tab{% if (tab.name == options.selected_tab) emit(' selected'); %}"><a href="{{ tab.url }}">{{ tab.text }}</a></span>
      {% } %}
    {% }); %}
  </div>
=}